Planter



March 3o; 1943. E; HOLLE PLANTER Filed March 12. l1941 UL-lrcfE Holle www# ATTORNEY.

Patented Mar. 30, 1943 STATES PATENT OFFICE 3 Claims.

The invention relates to seed planters and particularly to the shoes and shanks thereof. In the planting of beets, beans and corn, fertilizer is usually deposited in the furrow at the time that the seed is deposited. Best results are attained by depositing the fertilizer below the seed so that the fertilizer will be effective on the roots. The seed should not contact'the fertilizer hence it is necessary that sufficient soil shall cover the fertilizer before the seed is deposited.

The object of my invention is to provide a planter with novel means by which a furrow is formed, fertilizer is deposited in the furrow, a maximum of soil is released to cover the fertilizer and finally seed is deposited on the covering.

In accomplishing the invention, I form a shoe with a cutting blade, having a laterally expanded portion to form a channel for the passage of fertilizer which opens rearwardly. The shoe immediately behind the fertilizer discharge openingl is sharply constricted laterally for a selected distance and -then expanded laterally to the rear end to form a seed conduit, the shank having passages for both the fertilizer and the seed.

The invention is illustrated in the accompanying drawing in which Figure 1 is a plan view of a shoe and shank embodying the invention.

Figure 2 is a side elevation of the same.

Figure 3 is a bottom plan view of the shoe and Figure 4 is a cross-section on line 4 4 of Fig. 2.

vReferring to the illustrative embodiment of the invention, the shoel consists of the blade I0, the laterally expanded section I I, the constricted section I2 and the expanded section I3. The bifurcations or walls I4, I5 form the expanded section II, and a shelf I6 leads from the upper forward end of the section to the lower edge of each wall at the corners I'I thereof formed by cutting away the lower portion of said walls. Fertilizer is fed onto the shelf and it drops off the shelf into the furrow formed by the blade. Rearwardly of the edges I8 the walls are contacted in at least their lower portions for a selected distance as shown at I9 and they are then separated again to form a passage 2Il for the seed. The upper edges of the walls I4, I5 are substantially parallel and uniformly spaced, and in their constricted section the walls form a V. This latter section releases a maximum quantity of the soil that has been distributed by the blade so that it is free to drop onto the fertilizer that has been deposited in the bottom of the furrow.

The shank is formed with two passageways 2| and 22, for fertilizer and seed respectively. The

bottom of the shank is reduced to seat within the side walls I4, I5, and a hook shaped bolt 23 engages a pin 24 xed in the walls I4, I5 and projects through an opening in the bottom of the shank, a nut 24 serving to secure -the parts together. The usual pressure wheel (not shown) that follows the shoe is pivotally mounted on the lugs 25 and adjustably secured to the corrugated section 28.

Receptacles for fertilizer and seed are suitably connected -to the passages 2|, 22 respectively and the usual mechanisms to control the connections are used. Such are not shown as they form no part of my invention.

The length of the shoe and of the constricted section may be varied in accordance with the seed to be planted, the form shown being particularly well adapted for planting su'gar beets and soy beans. 1

The relative narrowness of the shoe reduces the lateral pressure exerted on the soil as the furrow is formed so that the soil is more apt to fall freely into the furrow than where the shoe is so wide that it presses the soil forcibly laterally.

What I claim is:

1. In a planter, a shoe comprising a blade having a bifurcated rear portion, a rearwardly opening discharge conduit for fertilizer in the forward portion of the bifurcation and a conduit for the discharge of seed adjacent to the rear end of the bifurcations, the said bifurcations being cut away in their lower portions from the discharge end of the fertilizer conduit to their rear ends and being in contact in a selected area between said conduits and a shank secured to said bifurcations and having passageways therein communicating with said conduits for feeding fertilizer and seed thereto respectively.

2. In a planter, a shoe comprising a blade having two laterally spaced side walls in its rear portion, a rearwardly opening discharge conduit for fertilizer between said walls, a discharge conduit for seed between the walls adjacent to their rear ends, said walls being cut away in their lower portions from the discharge end of the fertilizer conduit to their rear ends and being in contact for a portion of their length between said conduits and a shank secured to said bifurcations and having passageways therein communicating with said conduits for feeding fertilizer and seed thereto respectively.

3. .A planter shoe consisting of a blade having two laterally spaced walls in its rear portion the upper edges of which are substantially paral- CIL for seed adjacent to the rear ends of the walls and for a selected distance between said conduits said walls sloping vertically downwardly toward each other and being substantially in contact along their lower edges.

OTTO E. HOLLE. 

